Air-valve.



w. E. HEDGBR. AIR. VALVE.

APPLICATION FILED FEB.26, 1914.

1,126,464 Patented Jan. 26, 1915.

WITNESSES i/VVEfl/TOR I IWQIQ? E-7Z296f v By A TTOR/VEYS Cit . seat the valve.

AIR-VALVE.

Specification of Letters Patent.

Application filed February 26, 1914. Serial 1-10. 821,181.

To all 107mm it may concern Be it known that l, lVARD EATON Hnnonn, a citizen of the United States, and at pres ent residing at l aupun, in the county of Dodge and State of Visconsin, have in;-

ventcd a new and Improved Air-Valve, of

which the following is a full, clear, and exact description.

lvl invention relates to an improved valve especially adapted for inflating pneumatic tires, although useful for other purposes of an air valve, and it'is an object of my invention to provide a device for the indicated purpose, improved in various particulars, to the end that efiicicncy in operation may be promoted, as well as convenience in as sembling the parts, and simplicity of adj stment.

with a pump. On the valve stem guide disks are formed to give the stem parallel guided movement in the chamber. and a spring beneath the innermost disk tends to The valve stem at its inner end is disposed relatively to the bore of the valve body so as not to obstruct the said bore, and is adapted to limit the inward movement of the valve.

The invention resides in the distinctive features characterizing the novel construction and arrangements of the parts.

Reference is to be had to the accom pa nying drawings forming a part of this specification, in which similar characters oi? reference indicate corresponding parts in all the views.

Fig re 1 is a side elevation of emboi'lyin r my invention; Fig. is a lonnitudinal sec ion showing the valve in the closed f'ilisliifiil} is a fragmentary longitmlinal section showing the v: lve oil i s scat. as when the tire is being inflated; l ,i s is a l ragmentarv view showing the alve seated and illustrating, a slight modiiicatio in r arrangement of the valve ran and the bore of the valve body: Fig.

a valve 5 is a view similar to Fig l, but illustrating a modification in the form of the valve chamber; Fig. 6 is a perspective view of the valve; and Fig. '5 is a view similar to 6, but illnst 'ating: a slightly modified form of the valve.

In constructing a tire valve in accordance with my invention, the valve s' an or body 10 may be in general of any approved form and dimensions, and in practice will be provided with any known form of ning means, there being;- shown in the present instance, the usual flange 11 at one eml. longitudinal through-bore 12 is formed in. the body, and a valve chamber .3 is produced complcmentary to the said bore and of larger diameter. The outer end of the chamber is enlarged as at It. 'ihreaded on the body is a bonnet ha vinn a nipple 16, the said bonnet and nipple having a longitudinal port 1.7 for the ingress and egress of air. The nipple is threaded to receive a dust cap 18 or to connect with the pump when the cap is removed.

A valve stem 19 is disposed longzitudinall. in the valve chamber 13, 1-1:, and carries a valve 20 disposed in the enlarged end 1% oil the chamber. The bonnet Forms a valve seat for the valve 20 and may have a washeror packing: disk 21. Similarly the valve 20 may have a washer 29. to contact with the disk 21.

In order to give guided par; llel n'iovemcnt to the valve stem in the pening and closing of the valve, said stem provided with spaced collars or disks 23. a compression spring Jr being provided beneath the inner collar 23, the spring normally tending to maintain the valve in the closet position. The valve :20 is of less diameter than the enlarged end 14 "if the valve chamber, so that air may pass freely around the said valve when oil its scat, and the collars 23 are formed with openings (sec l (S) for the passage of air in either direction. The openir 23 in the term shown in b are in the form of orifices. in the in shown in Fi "2', however. dislts 23 are c111- ploycd, ha peripheral recess, s J; 'ihc bottom of the enlarged portion Til ol: the valve chamber is beveled as at g the collars in insei-ing the valv the chamber 38.

lt ill be observed "1. of the valve the bore 1:2 0:

struct said bore. Thus in Figs. 2 and 3, the bore 12 is axial and the inner end 19 of the valve stem is dellected laterally so that its inner end is out of alinement with the bore. In the form shown in Fig. 4 the bore 12 of the body 10 is eccentric, while the stem continues straight eo-axially with the body. In both forms it will be seen that when the valve moves inward under the pressure of incoming air, the inner end of the valvestem will contact with the/bottom of the valve chamber 13, at one side of the bore and will thus limit the inward movement of the valve.

In the form shown in Fig. 5, the valve is the same as in Figs. 2 and 3, but the valve chamber13 is of uniform diameter throughout, the said bore being of greater diameter than the valve 20 and its washer to permit the passage of air around the valve, while the collars 23 are of a diameter to snugly fit the chamber. It is to be understood that the collars 22-5 in practice, have the same openings as shown in Fig. 6, for the passage of air therethrongh.

Having thus described my invention, 1 claim new and desire to secure by Letters Patent:

1. An air valve comprising a valve body having a through-bore and a valve chamber at the outer end complementary to the bore and of larger diameter, a valve stem longitudinally disposed in the said valve chamber and having a valve at the outer end thereof, a bonnet on the body having a port for the ingress and egress of air and forming a val ve seat for the said valve, the said bonnet maeeea having a nipple adapted to receive a cap or to connect with a. pump, the said valve stem being formed with spaced guide c0llars inward from the valve, a spring beneath the outer collar, the said valve stem at its inner end beirg out of alinement with the bore of the valve body and adapted to contact with the bottom of the valve chamber upon an inward movement of the valve to limit said inward movement. r

2. An air valve comprising an elongated body having a through-bore and formed with a valve cham ier complementary to the bore and of large diameter,-a valve stem longitudinally dist osed in said chamber and carrying a valve at its outer end, spaced collars on the stem snugly fitting the valve chamber and provit ed with openings for the passage of air, the stem of the valve projecting inwardly beyond the innermost collar and being out of alinement with the bore of the body and moval le into contact with the bottom of the valve :hamber when the valve is opened, a spring beneath the innermost collar, and a bonnzt on the valve body adapted to receive a dust cap or to connect with a pump, said bonnet having a port for the passage of air and constituting a seat for the valve.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

'WJLRQRD EATON H EDGER.

Witnesses W. O. Tlinnnv B. S. CIIOAT. 

